I've had the bike for a year or so, which is about how long I've been riding motorcycles. I didn't think to turn the gas off when I put the bike away for the winter (I know, I know), and I had a gas leak some time in January. At that point I turned the gas off.
Last week I replaced the fuel line and took the bike for a spin, but it wasn't running quite right - it seemed like it wasn't getting enough gas. I drove it to a brother-in-law's house, where we determined that it was simply a kinked fuel line. But in the process we heard a gurgling sound coming from the air box, and we found that there was a lot of gas in it. A float in one of my carbs must have stuck in the beginning of winter, backfeeding gasoline into the air box. The gurgling sound must have been coming from the transmission breather tube that connects at the bottom of the air box. We drained the air box of all the gas, then proceeded to change my oil, which we were going to do anyway. Well, the oil was basically like gasoline with a little bit of oil in it, and I had driven the bike about 50 or so miles like that. After changing the oil we went on about a 100 mile ride. My bike always had a valve tick, but at one point, while I was on the interstate in heavy traffic, the noise changed and the bike felt different, but then it went back to normal. 2 miles later I lost all power, and I knew it was serious. My brother in laws think that a bearing was already starting to fail and this just helped it along, but I guess we'll never know. Is it possible to upload pictures using Google Groups? I have some shots of the damage if anyone is interested... Long story short: Gas in oil = bad. Turn off your fuel valve before winter, and check the oil before you take it for your first ride of the year.... I had to learn the hard way. I think I may have found a CB700SC engine or 2 locally... wish me luck. On Apr 20, 6:43 am, kiwi <graha...@ptd.net> wrote: > I'm curious. How did you throw a rod? Would you mind giving us > details so we can learn from this? Are these motors prone to do this > or what? How many miles on it and what were the circumstances? > > On Apr 19, 11:04 pm, ifitzgerald <ifitzger...@gmail.com> wrote: > > > I own a 1984 CB700SC. It's my first bike, and I've owned it for about > > a year. Unfortunately, it threw a rod yesterday. I'm currently > > evaluating my options. It's such a great bike, I would be a shame not > > to fix it. Would engines from other models/years fit my bike? I > > found a guy selling new old stock 1979-1983 CB750 engines and was > > wondering if that might work. Otherwise, if you have suggestions for > > finding another CB700SC engine I would really appreciate it. > > > Thanks for your time! --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to nighthawk_lovers@googlegroups.com To unsubscribe from this group, send email to nighthawk_lovers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en -~----------~----~----~----~------~----~------~--~---
